Intraabdominal pressure changes during hip arthroscopy. A prospective multi center study

Abstract Purpose The purpose of the study was to evaluate intra-abdominal pressure changes during hip arthroscopy and define its relationship with other patient related variables. Materials and methods A prospective multicentre study evaluating intra-abdominal Pressure (IAP) in patients undergoing arthroscopic treatment of femoroacetabular impingement (FAI) was performed. The IAP was measured indirectly by a bladder catheter (AbViser® Autovalve® Intra-abdominal pressure monitor) and documented every 30 minutes during the entire procedure. The following risk factors were analyzed: traction time, duration surgery, previous abdominal surgery, capsule repair, psoas tenotomy and surgical approach. Results One hundred and five patients with symptomatic FAI underwent hip arthroscopy met the inclusion criteria. There were significant differences in the IAP between the pre-operative measurement of IAP and the IAP at different time points during surgery (p Conclusion Intra-abdominal pressure increases significantly during the first 60 minutes of the hip arthroscopy, and then it stabilizes for the duration of surgery prior to decreasing just after the completion of surgery. The highest recorded IAP was not associated with additional complications. No symptomatic intra-abdominal hypertension was documented. Finally, patient specific and procedure specific risk factors did not predict changes in IAP. Systemic monitoring of IAP during the hip arthroscopy procedure can easily and effectively be done, allowing the surgeon to early detect any significant change.